Question

what is the missing length in the scaled copy? units 45 90 original ? 30 scaled copy

Explanation:

Step1: Find the scale factor

The original height is 90 units and the scaled copy height is 30 units. The scale factor is the ratio of the scaled copy length to the original length. So, scale factor $= \frac{30}{90} = \frac{1}{3}$.

Step2: Calculate the missing length

The original width is 45 units. To find the scaled copy width, multiply the original width by the scale factor. So, missing length $= 45\times\frac{1}{3} = 15$.

Answer:

15